RBY Pure Hackmons Viability Rankings
Following the discovery that RBY PH should be played at level 255 and new strategies discovered within the community, I think it's time that the VR gets an update. In this post I'm hoping to share my opinion on what the RBY Pure Hackmons VR should look like, as well as providing a full setpedia and basic analyses for each Pokemon in the VR. Most of these changes were made when theorymonning over this past weekend - thank you Sheeplol for help with bouncing ideas! Without further ado, here's my personal viability rankings!
Electrode Rank

A Rank


B Rank


C Rank



Do Not Use

Perhaps the biggest change to the metagame since the last VR is the discovery of Quick Attack strats, where a powerful Normal-type Pokemon such as Kangaskhan or Dodrio uses Quick Attack (the only positive priority move in the generation) to chip away the HP of opposing Electrodes, letting the Quick Attacker outspeed the opponent's Chanseys to reverse sweep. Indeed, all three of the new additions to my personal VR can serve as Quick Attackers. The other major change to the metagame is the level cap increase to 255, which serves as a nerf to Chansey, who now gets 7HKO'd by Seismic Toss instead of an 8HKO, and a nerf to Electrode, as now its speed is capped at 999, which can be reached by every Pokemon with a speed stat above 50 (aka everything on the VR except for Chansey) after just one Agility. For an explanation of why I put every Pokemon in the tier I did, see the setpedia/analysis section below.
RBY Pure Hackmons Setpedia
Electrode Rank

Electrode
Level: 255
- Spore
- Agility
- Seismic Toss / Hi Jump Kick / Horn Drill / Fissure
- Seismic Toss / Hi Jump Kick / Horn Drill / Fissure
Electrode is THE Pokemon that dictates how RBY Pure Hackmons is played, and it's easy to see why. Due to Gen 1 sleep mechanics, Spore is an incredibly broken move when paired with the fastest Pokemon in the generation, allowing for Electrode to put the opponent to sleep turn 1, use Agility turn 2, and slowly sweep through the other team using Seismic Toss or Horn Drill, making sure to Spore the opponent back to sleep whenever they wake up. As a result, Electrode is a mandatory lead on any serious RBY Pure Hackmons team and a majority (but not all) of RBY PH games are decided by the Electrode speedtie at the start of the match. Seismic Toss is the preferred attack of choice for Electrode as it deals consistent typeless damage and allows Electrode to slowly chip through every Pokemon in the meta, although running a OHKO move is a riskier option that lowers the chance of Electrode getting a 1/256 miss, but makes getting KOs more dependent on RNG and results in Electrode getting countered by one of Aerodactyl or Gengar. Hi Jump Kick is another possible option for Electrode, letting it 3HKO Chansey but at the cost of 90% accuracy and being walled by Gengar. Running two of the same move is recommended as it results in the move having infinite PP, which is often necessary for Electrode to beat teams with many Chanseys.
Despite the centralization of the meta around Electrode, the Pokemon is far from invincible, and there are three primary ways for players who lost the Electrode speedtie to come back and win the match. The first, as alluded to in the previous paragraph, is the 1/256 Spore miss. If Electrode misses a Spore, the opposing Pokemon can respond by using Spore themselves before setting themselves up to 999 speed and forcing another speedtie. The second method of beating Electrode is similar: running out Spore's PP by switching in and out between asleep and awake Pokemon. To counter this strategy, Electrode can theoretically run Spore in two moveslots, however Electrode then struggles with the limited PP of its attacking move. The final method of beating Electrode is through abusing Electrode's mediocre bulk through Quick Attack, the only positive priority attack in the generation. Teams that attempt this method of winning will run five Quick Attackers with the goal of chipping down Electrode in between Spores to knock out Electrode and then reverse sweep with the Quick Attacker.
Although running an Electrode lead is essentially mandatory in the metagame, running Electrode in non-lead spots is a fairly niche (but still viable) option that allows teams that won the first speedtie but lost their lead Electrode due to a lack of Spore PP to continue momentum and avoid losing the speed advantage against the opposing team. One other potential usage for Electrode could be as a Quick Attacker - although it has a pitiful base 50 attack, if it does manage to knock out the opponent's lead Electrode it at worst forces another speedtie and at best allows for a clean reverse sweep.
Despite the centralization of the meta around Electrode, the Pokemon is far from invincible, and there are three primary ways for players who lost the Electrode speedtie to come back and win the match. The first, as alluded to in the previous paragraph, is the 1/256 Spore miss. If Electrode misses a Spore, the opposing Pokemon can respond by using Spore themselves before setting themselves up to 999 speed and forcing another speedtie. The second method of beating Electrode is similar: running out Spore's PP by switching in and out between asleep and awake Pokemon. To counter this strategy, Electrode can theoretically run Spore in two moveslots, however Electrode then struggles with the limited PP of its attacking move. The final method of beating Electrode is through abusing Electrode's mediocre bulk through Quick Attack, the only positive priority attack in the generation. Teams that attempt this method of winning will run five Quick Attackers with the goal of chipping down Electrode in between Spores to knock out Electrode and then reverse sweep with the Quick Attacker.
Although running an Electrode lead is essentially mandatory in the metagame, running Electrode in non-lead spots is a fairly niche (but still viable) option that allows teams that won the first speedtie but lost their lead Electrode due to a lack of Spore PP to continue momentum and avoid losing the speed advantage against the opposing team. One other potential usage for Electrode could be as a Quick Attacker - although it has a pitiful base 50 attack, if it does manage to knock out the opponent's lead Electrode it at worst forces another speedtie and at best allows for a clean reverse sweep.
Crit Rate: 27.34%
Lvl 255 Seismic Toss vs. Lvl 255 Electrode: 255-255 (31.5 - 31.5%) -- guaranteed 4HKO
Lvl 255 Electrode High Jump Kick vs. Lvl 255 Chansey: 568-668 (31.9 - 37.5%) -- 93.1% chance to 3HKO
Lvl 255 Electrode Quick Attack vs. Lvl 255 Electrode: 60-71 (7.4 - 8.7%) -- possibly the worst move ever
(for Electrode defensive calcs, see the Attacking Pokemon's calc folder)
Lvl 255 Seismic Toss vs. Lvl 255 Electrode: 255-255 (31.5 - 31.5%) -- guaranteed 4HKO
Lvl 255 Electrode High Jump Kick vs. Lvl 255 Chansey: 568-668 (31.9 - 37.5%) -- 93.1% chance to 3HKO
Lvl 255 Electrode Quick Attack vs. Lvl 255 Electrode: 60-71 (7.4 - 8.7%) -- possibly the worst move ever
(for Electrode defensive calcs, see the Attacking Pokemon's calc folder)
A Rank

Chansey
Level: 255
- Spore
- Agility
- Seismic Toss / Horn Drill / Fissure
- Seismic Toss / Horn Drill / Fissure
Chansey has the highest HP stat in the entire metagame, allowing for it to tank a whopping seven Seismic Tosses before fainting. This great bulk makes Chansey arguably the premier non-lead Pokemon in the metagame, useful maximizing the odds of getting a 1/256 Spore miss or using their bulk to stall out Spore PP through switches. Chansey's moveset is very straightforward as Seismic Toss is the strongest and most consistent damage option, with the OHKO moves serving as a riskier option if desired.
Apart from its high HP, the rest of Chansey's stats provide challenges for its ability to reverse sweep. Most notably, its speed stat is low enough that it requires two Agilities in order to reach the coveted 999 speed stat to speedtie Electrode, giving Electrode an extra turn to potentially wake up and still guarantee that it outspeeds Chansey to continue its sweep. Chansey also has a pitiful defense base stat of 5, giving it comparable physical bulk to Electrode, which makes it just as vulnerable as Electrode to Quick Attackers if Chansey is able to get to 999 speed and begin reverse sweeping.
Apart from its high HP, the rest of Chansey's stats provide challenges for its ability to reverse sweep. Most notably, its speed stat is low enough that it requires two Agilities in order to reach the coveted 999 speed stat to speedtie Electrode, giving Electrode an extra turn to potentially wake up and still guarantee that it outspeeds Chansey to continue its sweep. Chansey also has a pitiful defense base stat of 5, giving it comparable physical bulk to Electrode, which makes it just as vulnerable as Electrode to Quick Attackers if Chansey is able to get to 999 speed and begin reverse sweeping.
Lvl 255 Seismic Toss vs. Lvl 255 Chansey: 255-255 (14.3 - 14.3%) -- guaranteed 7HKO
(like Electrode, relevant calcs against Chansey will be in the attacking Pokemon's calc folder)
(like Electrode, relevant calcs against Chansey will be in the attacking Pokemon's calc folder)

Aerodactyl
Level: 255
- Spore
- Agility / Quick Attack
- Hi Jump Kick / Drill Peck / Seismic Toss / Horn Drill / Fissure / Quick Attack
- Earthquake / Seismic Toss / Horn Drill / Fissure
As a Pokemon with the best defensive typing in the meta, a speed stat that is tied for second-best, and a strong attack stat, Aerodactyl rounds out the A tier as the third best Pokemon in the metagame in my opinion. With a resistance to Quick Attack and an immunity to Fissure, Aerodactyl can wall QAs while outspeeding or speedtying with every unboosted QA user and also force Fissure Electrode into switching out. If given the opportunity the counter sweep, Aerodactyl's Hi Jump Kick 3HKOs Chansey and its Earthquake 2HKOs Electrode and Gengar, though an Aerodactyl running that set could potentially run into PP issues, especially with HJK's 90% accuracy. Drill Peck is another option on Aerodactyl that provides increased damage against Mewtwo and Dodrio at the cost of 3HKOing Chansey instead of a 2HKO. Like the previous Pokemon, Seismic Toss and OHKO moves are also reasonable options on Aerodactyl, as they solidify Aerodactyl's poorer matchups against Mewtwo and other Aerodactyls. Aerodactyl's major flaw as a wall is its low HP stat, as it gets 4HKO'd by Seismic Toss, a significant downgrade compared to Chansey when fishing for 1/256s and running out Spore PP. Aerodactyl's mediocre special stat also means that it is vulnerable to Mewtwo's Psychic.
Another possible set for Aerodactyl is as a Quick Attacker. While it has the least powerful relevant QA in the meta, its high speed stat and good defensive typing give it a small niche as a Quick Attacker that will outspeed/speedtie every non-lead Pokemon that switches in except for Electrode if Aerodactyl is able to kill the lead Electrode. Aerodactyl's issues as a QAer are numerous, however. Its QA is only an 8HKO on Electrode, meaning that it will most likely require assistance from Kangaskhan or Dodrio for Aerodactyl to get the knock out. Like all Quick Attackers, it also suffers immensely from 4MSS, having to choose between giving up Agility or one of its two attacking slots in order to fit in QA. As a Quick Attacker, Aerodactyl also struggles in the matchup against a non-QA Aerodactyl, who can wall the opposing QAs without an issue.
Another possible set for Aerodactyl is as a Quick Attacker. While it has the least powerful relevant QA in the meta, its high speed stat and good defensive typing give it a small niche as a Quick Attacker that will outspeed/speedtie every non-lead Pokemon that switches in except for Electrode if Aerodactyl is able to kill the lead Electrode. Aerodactyl's issues as a QAer are numerous, however. Its QA is only an 8HKO on Electrode, meaning that it will most likely require assistance from Kangaskhan or Dodrio for Aerodactyl to get the knock out. Like all Quick Attackers, it also suffers immensely from 4MSS, having to choose between giving up Agility or one of its two attacking slots in order to fit in QA. As a Quick Attacker, Aerodactyl also struggles in the matchup against a non-QA Aerodactyl, who can wall the opposing QAs without an issue.
Crit Rate: 25.39%
Lvl 255 Seismic Toss vs. Lvl 255 Aerodactyl: 255-255 (28 - 28%) -- guaranteed 4HKO
Lvl 255 Aerodactyl Drill Peck vs. Lvl 255 Chansey: 626-736 (35.2 - 41.4%) -- guaranteed 3HKO
Lvl 255 Aerodactyl Drill Peck vs. Lvl 255 Mewtwo: 237-279 (22.7 - 26.7%) -- 33.8% chance to 4HKO
Lvl 255 Aerodactyl Drill Peck vs. Lvl 255 Kangaskhan: 256-301 (24.6 - 29%) -- 99.9% chance to 4HKO
Lvl 255 Aerodactyl Drill Peck vs. Lvl 255 Dodrio: 278-327 (34.4 - 40.4%) -- guaranteed 3HKO
Lvl 255 Aerodactyl Earthquake vs. Lvl 255 Electrode: 462-544 (57.1 - 67.3%) -- guaranteed 2HKO
Lvl 255 Aerodactyl Earthquake vs. Lvl 255 Gengar: 503-592 (62.2 - 73.2%) -- guaranteed 2HKO
Lvl 255 Aerodactyl Earthquake vs. Lvl 255 Mewtwo: 197-232 (18.9 - 22.2%) -- possible 5HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Chansey: 886-1042 (49.8 - 58.6%) -- 99.8% chance to 2HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Aerodactyl: 205-241 (22.5 - 26.4%) -- 19.2% chance to 4HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Kangaskhan: 362-426 (34.9 - 41%) -- guaranteed 3HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Dodrio: 197-232 (24.3 - 28.7%) -- 99.4% chance to 4HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Tauros: 325-382 (36.7 - 43.2%) -- guaranteed 3HKO
Lvl 255 Aerodactyl Quick Attack vs. Lvl 255 Electrode: 93-110 (11.5 - 13.6%) -- possible 8HKO
Lvl 255 Aerodactyl Quick Attack vs. Lvl 255 Chansey: 209-246 (11.7 - 13.8%) -- possible 8HKO
Lvl 255 Electrode High Jump Kick vs. Lvl 255 Aerodactyl: 131-155 (14.3 - 17%) -- possible 6HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Aerodactyl: 205-241 (22.5 - 26.4%) -- 19.2% chance to 4HKO
Lvl 255 Mewtwo High Jump Kick vs. Lvl 255 Aerodactyl: 211-249 (23.1 - 27.3%) -- 67.4% chance to 4HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Aerodactyl: 436-513 (47.9 - 56.3%) -- 87.5% chance to 2HKO
Lvl 255 Aerodactyl Quick Attack vs. Lvl 255 Aerodactyl: 48-57 (5.2 - 6.2%) -- possibly the worst move ever
Lvl 255 Mewtwo Quick Attack vs. Lvl 255 Aerodactyl: 50-59 (5.4 - 6.4%) -- possibly the worst move ever
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Aerodactyl: 68-80 (7.4 - 8.7%) -- possibly the worst move ever
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Aerodactyl: 74-88 (8.1 - 9.6%) -- possibly the worst move ever
Lvl 255 Tauros Quick Attack vs. Lvl 255 Aerodactyl: 70-83 (7.6 - 9.1%) -- possibly the worst move ever
Lvl 255 Seismic Toss vs. Lvl 255 Aerodactyl: 255-255 (28 - 28%) -- guaranteed 4HKO
Lvl 255 Aerodactyl Drill Peck vs. Lvl 255 Chansey: 626-736 (35.2 - 41.4%) -- guaranteed 3HKO
Lvl 255 Aerodactyl Drill Peck vs. Lvl 255 Mewtwo: 237-279 (22.7 - 26.7%) -- 33.8% chance to 4HKO
Lvl 255 Aerodactyl Drill Peck vs. Lvl 255 Kangaskhan: 256-301 (24.6 - 29%) -- 99.9% chance to 4HKO
Lvl 255 Aerodactyl Drill Peck vs. Lvl 255 Dodrio: 278-327 (34.4 - 40.4%) -- guaranteed 3HKO
Lvl 255 Aerodactyl Earthquake vs. Lvl 255 Electrode: 462-544 (57.1 - 67.3%) -- guaranteed 2HKO
Lvl 255 Aerodactyl Earthquake vs. Lvl 255 Gengar: 503-592 (62.2 - 73.2%) -- guaranteed 2HKO
Lvl 255 Aerodactyl Earthquake vs. Lvl 255 Mewtwo: 197-232 (18.9 - 22.2%) -- possible 5HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Chansey: 886-1042 (49.8 - 58.6%) -- 99.8% chance to 2HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Aerodactyl: 205-241 (22.5 - 26.4%) -- 19.2% chance to 4HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Kangaskhan: 362-426 (34.9 - 41%) -- guaranteed 3HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Dodrio: 197-232 (24.3 - 28.7%) -- 99.4% chance to 4HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Tauros: 325-382 (36.7 - 43.2%) -- guaranteed 3HKO
Lvl 255 Aerodactyl Quick Attack vs. Lvl 255 Electrode: 93-110 (11.5 - 13.6%) -- possible 8HKO
Lvl 255 Aerodactyl Quick Attack vs. Lvl 255 Chansey: 209-246 (11.7 - 13.8%) -- possible 8HKO
Lvl 255 Electrode High Jump Kick vs. Lvl 255 Aerodactyl: 131-155 (14.3 - 17%) -- possible 6HKO
Lvl 255 Aerodactyl High Jump Kick vs. Lvl 255 Aerodactyl: 205-241 (22.5 - 26.4%) -- 19.2% chance to 4HKO
Lvl 255 Mewtwo High Jump Kick vs. Lvl 255 Aerodactyl: 211-249 (23.1 - 27.3%) -- 67.4% chance to 4HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Aerodactyl: 436-513 (47.9 - 56.3%) -- 87.5% chance to 2HKO
Lvl 255 Aerodactyl Quick Attack vs. Lvl 255 Aerodactyl: 48-57 (5.2 - 6.2%) -- possibly the worst move ever
Lvl 255 Mewtwo Quick Attack vs. Lvl 255 Aerodactyl: 50-59 (5.4 - 6.4%) -- possibly the worst move ever
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Aerodactyl: 68-80 (7.4 - 8.7%) -- possibly the worst move ever
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Aerodactyl: 74-88 (8.1 - 9.6%) -- possibly the worst move ever
Lvl 255 Tauros Quick Attack vs. Lvl 255 Aerodactyl: 70-83 (7.6 - 9.1%) -- possibly the worst move ever
B Rank

Gengar
Level: 255
- Spore
- Agility
- Seismic Toss / Hi Jump Kick / Horn Drill / Fissure
- Seismic Toss / Hi Jump Kick / Horn Drill / Fissure
Gengar is a very straightforward Pokemon. Its Ghost typing lets it be the only relevant Pokemon immune to Horn Drill and Quick Attack while its decent speed tier lets it outspeed and reverse sweep Chansey, Kangaskhan, and Dodrio. Its moveset is also very straightforward - Seismic Toss is Gengar's strongest move against most opposing Pokemon besides Chansey, while Hi Jump Kick has significantly worse matchups against all Pokemon except for Chansey and Kangaskhan. Gengar's biggest flaw is its speed - while faster than the "slow" Pokemon in the tier, when unboosted it gets outsped by both Aerodactyl and Mewtwo, two Pokemon that Gengar is very much afraid of as Aerodactyl's Earthquake and Mewtwo's Psychic or Earthquake both 2HKO Gengar. In addition, Tauros speedties an unboosted Gengar. In my opinion, despite Gengar's immunity to QA, its lower speed stat and losses to QA Aero and Mewtwo as well as speedtie with Tauros make Gengar an inferior QA wall to Aero on a majority of teams.
Crit Rate: 21.48%
Lvl 255 Seismic Toss vs. Lvl 255 Gengar: 255-255 (31.5 - 31.5%) -- guaranteed 4HKO
Lvl 255 Gengar High Jump Kick vs. Lvl 255 Electrode: 145-171 (17.9 - 21.1%) -- possible 5HKO
Lvl 255 Gengar High Jump Kick vs. Lvl 255 Chansey: 655-770 (36.8 - 43.3%) -- guaranteed 3HKO
Lvl 255 Gengar High Jump Kick vs. Lvl 255 Kangaskhan: 268-316 (25.8 - 30.4%) -- guaranteed 4HKO
Lvl 255 Gengar High Jump Kick vs. Lvl 255 Tauros: 239-282 (27 - 31.9%) -- guaranteed 4HKO
Lvl 255 Aerodactyl Earthquake vs. Lvl 255 Gengar: 503-592 (62.2 - 73.2%) -- guaranteed 2HKO
Lvl 255 Mewtwo Earthquake vs. Lvl 255 Gengar: 519-610 (64.2 - 75.4%) -- guaranteed 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Gengar: 531-624 (65.7 - 77.2%) -- guaranteed 2HKO
Lvl 255 Seismic Toss vs. Lvl 255 Gengar: 255-255 (31.5 - 31.5%) -- guaranteed 4HKO
Lvl 255 Gengar High Jump Kick vs. Lvl 255 Electrode: 145-171 (17.9 - 21.1%) -- possible 5HKO
Lvl 255 Gengar High Jump Kick vs. Lvl 255 Chansey: 655-770 (36.8 - 43.3%) -- guaranteed 3HKO
Lvl 255 Gengar High Jump Kick vs. Lvl 255 Kangaskhan: 268-316 (25.8 - 30.4%) -- guaranteed 4HKO
Lvl 255 Gengar High Jump Kick vs. Lvl 255 Tauros: 239-282 (27 - 31.9%) -- guaranteed 4HKO
Lvl 255 Aerodactyl Earthquake vs. Lvl 255 Gengar: 503-592 (62.2 - 73.2%) -- guaranteed 2HKO
Lvl 255 Mewtwo Earthquake vs. Lvl 255 Gengar: 519-610 (64.2 - 75.4%) -- guaranteed 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Gengar: 531-624 (65.7 - 77.2%) -- guaranteed 2HKO

Mewtwo
Level: 255
EVs: 252 HP / 252 Atk / 252 Def / 208 SpA / 252 SpD / 252 Spe
- Spore
- Agility / Quick Attack
- Psychic / Hi Jump Kick / Horn Drill / Fissure / Quick Attack
- Psychic / Earthquake / Horn Drill / Fissure
Despite being conventionally the best Pokemon in all of RBY, Mewtwo ends up ranked fifth on my personal VR. While its pros are immediately transparent - it's tied for the second fastest Pokemon and has the strongest attack with no downsides in the meta with its Psychic, Mewtwo unfortunately suffers from "jack of all trades, master of none" syndrome. While it's incredibly fast and hits incredibly hard, Mewtwo is still outsped by Electrode and is at the same speed tier and has roughly the same attack power as Aerodactyl, whose better typing gives it an edge over Mewtwo.
Mewtwo's primary niche over Aerodactyl is its better bulk for tanking non-QA attacks (including taking an extra hit from Seismic Toss) and its Psychic, which has a higher damage output than any of Aerodactyl's attacks on every Pokemon except for Chansey and opposing Mewtwos. Because Mewtwo's special stat at max EVs is above 999, its special EVs need to be lowered to 208 so that it can have a special stat of 999 and not roll over. For Mewtwo's attacking slots, it can run two Psychics for inifinite PP on its strongest move at the cost of having a slightly worse Chansey matchup, or Mewtwo can run Psychic and Hi Jump Kick to shore up its matchup with Chansey, although at the cost of having limited PP. Mewtwo can also run Earthquake to guarantee a 2HKO against Electrode and also improve its matchup against opposing Mewtwos who resist Psychic and HJK.
Similarly to Aerodactyl, Mewtwo can also serve a role as a fast Quick Attacker that hopes to outspeed/speedtie the Pokemon that comes in after Electrode faints. Mewtwo has a slightly stronger attack stat than Aerodactyl, but its lack of Normal STAB means that its QAs are still weaker than Kangaskhan and Dodrio and so should be reserved until the opposing Electrode is at low health so Mewtwo can be on the field when the opponent sends their next Pokemon out. QA Mewtwo also suffers from 4MSS, and has the unenviable choice of either losing Agility and subjecting Mewtwo to potentially unnecessary speedties, or giving up an attacking slot and not having infinite PP to attack.
Mewtwo's primary niche over Aerodactyl is its better bulk for tanking non-QA attacks (including taking an extra hit from Seismic Toss) and its Psychic, which has a higher damage output than any of Aerodactyl's attacks on every Pokemon except for Chansey and opposing Mewtwos. Because Mewtwo's special stat at max EVs is above 999, its special EVs need to be lowered to 208 so that it can have a special stat of 999 and not roll over. For Mewtwo's attacking slots, it can run two Psychics for inifinite PP on its strongest move at the cost of having a slightly worse Chansey matchup, or Mewtwo can run Psychic and Hi Jump Kick to shore up its matchup with Chansey, although at the cost of having limited PP. Mewtwo can also run Earthquake to guarantee a 2HKO against Electrode and also improve its matchup against opposing Mewtwos who resist Psychic and HJK.
Similarly to Aerodactyl, Mewtwo can also serve a role as a fast Quick Attacker that hopes to outspeed/speedtie the Pokemon that comes in after Electrode faints. Mewtwo has a slightly stronger attack stat than Aerodactyl, but its lack of Normal STAB means that its QAs are still weaker than Kangaskhan and Dodrio and so should be reserved until the opposing Electrode is at low health so Mewtwo can be on the field when the opponent sends their next Pokemon out. QA Mewtwo also suffers from 4MSS, and has the unenviable choice of either losing Agility and subjecting Mewtwo to potentially unnecessary speedties, or giving up an attacking slot and not having infinite PP to attack.
Crit Rate: 25.39%
Lvl 255 Seismic Toss vs. Lvl 255 Mewtwo: 255-255 (24.4 - 24.4%) -- guaranteed 5HKO
Lvl 255 Mewtwo Earthquake vs. Lvl 255 Electrode: 478-562 (59.1 - 69.5%) -- guaranteed 2HKO
Lvl 255 Mewtwo Earthquake vs. Lvl 255 Chansey: 537-632 (30.2 - 35.5%) -- 32.2% chance to 3HKO
Lvl 255 Mewtwo Earthquake vs. Lvl 255 Mewtwo: 203-239 (19.4 - 22.9%) -- possible 5HKO
Lvl 255 Mewtwo High Jump Kick vs. Lvl 255 Chansey: 913-1074 (51.3 - 60.4%) -- guaranteed 2HKO
Lvl 255 Mewtwo High Jump Kick vs. Lvl 255 Kangaskhan: 374-440 (36 - 42.4%) -- guaranteed 3HKO
Lvl 255 Mewtwo High Jump Kick vs. Lvl 255 Tauros: 335-394 (37.8 - 44.5%) -- guaranteed 3HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Electrode: 368-433 (45.5 - 53.5%) -- 39.8% chance to 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Chansey: 308-363 (17.3 - 20.4%) -- possible 5HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Aerodactyl: 436-513 (47.9 - 56.3%) -- 87.5% chance to 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Gengar: 531-624 (65.7 - 77.2%) -- guaranteed 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Kangaskhan: 536-631 (51.6 - 60.8%) -- guaranteed 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Dodrio: 436-513 (53.9 - 63.4%) -- guaranteed 2HKO
Lvl 255 Mewtwo Quick Attack vs. Lvl 255 Electrode: 96-113 (11.8 - 13.9%) -- possible 8HKO
Lvl 255 Mewtwo Quick Attack vs. Lvl 255 Chansey: 216-254 (12.1 - 14.2%) -- possible 7HKO
Lvl 255 Aerodactyl Quick Attack vs. Lvl 255 Mewtwo: 79-94 (7.5 - 9%) -- possibly the worst move ever
Lvl 255 Mewtwo Quick Attack vs. Lvl 255 Mewtwo: 82-97 (7.8 - 9.3%) -- possibly the worst move ever
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Mewtwo: 112-132 (10.7 - 12.6%) -- possible 8HKO
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Mewtwo: 123-145 (11.8 - 13.9%) -- possible 8HKO
Lvl 255 Seismic Toss vs. Lvl 255 Mewtwo: 255-255 (24.4 - 24.4%) -- guaranteed 5HKO
Lvl 255 Mewtwo Earthquake vs. Lvl 255 Electrode: 478-562 (59.1 - 69.5%) -- guaranteed 2HKO
Lvl 255 Mewtwo Earthquake vs. Lvl 255 Chansey: 537-632 (30.2 - 35.5%) -- 32.2% chance to 3HKO
Lvl 255 Mewtwo Earthquake vs. Lvl 255 Mewtwo: 203-239 (19.4 - 22.9%) -- possible 5HKO
Lvl 255 Mewtwo High Jump Kick vs. Lvl 255 Chansey: 913-1074 (51.3 - 60.4%) -- guaranteed 2HKO
Lvl 255 Mewtwo High Jump Kick vs. Lvl 255 Kangaskhan: 374-440 (36 - 42.4%) -- guaranteed 3HKO
Lvl 255 Mewtwo High Jump Kick vs. Lvl 255 Tauros: 335-394 (37.8 - 44.5%) -- guaranteed 3HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Electrode: 368-433 (45.5 - 53.5%) -- 39.8% chance to 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Chansey: 308-363 (17.3 - 20.4%) -- possible 5HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Aerodactyl: 436-513 (47.9 - 56.3%) -- 87.5% chance to 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Gengar: 531-624 (65.7 - 77.2%) -- guaranteed 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Kangaskhan: 536-631 (51.6 - 60.8%) -- guaranteed 2HKO
Lvl 255 Mewtwo Psychic vs. Lvl 255 Dodrio: 436-513 (53.9 - 63.4%) -- guaranteed 2HKO
Lvl 255 Mewtwo Quick Attack vs. Lvl 255 Electrode: 96-113 (11.8 - 13.9%) -- possible 8HKO
Lvl 255 Mewtwo Quick Attack vs. Lvl 255 Chansey: 216-254 (12.1 - 14.2%) -- possible 7HKO
Lvl 255 Aerodactyl Quick Attack vs. Lvl 255 Mewtwo: 79-94 (7.5 - 9%) -- possibly the worst move ever
Lvl 255 Mewtwo Quick Attack vs. Lvl 255 Mewtwo: 82-97 (7.8 - 9.3%) -- possibly the worst move ever
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Mewtwo: 112-132 (10.7 - 12.6%) -- possible 8HKO
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Mewtwo: 123-145 (11.8 - 13.9%) -- possible 8HKO
C Rank

Kangaskhan
Level: 255
- Spore
- Agility
- Quick Attack
- Seismic Toss / Hi Jump Kick
Kangaskhan is the premier Quick Attacker in the meta, powered off its 95 base attack with Normal STAB. With its solid bulk requiring 5 Seismic Tosses to KO, each Kangaskhan on a team can often get at least 2 Quick Attacks off before fainting, dealing ~33% damage to an opposing Electrode with each Kangaskhan (without factoring in crits). Kangaskhan works best against teams that do not include Aerodactyl or Gengar (such as the infamous 1 Electrode + 5 Chansey sample), as Kangaskhan's QAs can hit Electrodes for big damage without the opponent having any Pokemon that can both wall and outspeed Kanga at the same time. Conversely, if the opponent does run one of Aerodactyl or Gengar and is able to bring them in against Kangaskhan without being Spored, the Kangaskhan user is in a very bad position. Kangaskhan's primary objective is to force the opponent to bring out Chansey against it, as Kanga outspeeds unboosted Chansey and can Spore and setup to reverse sweep the opponent. Seismic Toss and HJK are strong options to use in the fourth moveslot to either give Kangaskhan a slightly better matchup against Gengar and Aerodactyl with the former, and an easier time knocking out Chansey with the latter.
Crit Rate: 17.59%
Lvl 255 Seismic Toss vs. Lvl 255 Kangaskhan: 255-255 (24.5 - 24.5%) -- guaranteed 5HKO
Lvl 255 Kangaskhan High Jump Kick vs. Lvl 255 Chansey: 827-972 (46.5 - 54.6%) -- 63.1% chance to 2HKO
Lvl 255 Kangaskhan High Jump Kick vs. Lvl 255 Aerodactyl: 191-225 (20.9 - 24.7%) -- guaranteed 5HKO
Lvl 255 Kangaskhan High Jump Kick vs. Lvl 255 Kangaskhan: 338-398 (32.5 - 38.3%) -- 98.9% chance to 3HKO
Lvl 255 Kangaskhan High Jump Kick vs. Lvl 255 Tauros: 302-356 (34.1 - 40.2%) -- guaranteed 3HKO
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Electrode: 131-154 (16.2 - 19%) -- possible 6HKO
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Chansey: 293-345 (16.4 - 19.4%) -- possible 6HKO
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Mewtwo: 112-132 (10.7 - 12.6%) -- possible 8HKO
Lvl 255 Seismic Toss vs. Lvl 255 Kangaskhan: 255-255 (24.5 - 24.5%) -- guaranteed 5HKO
Lvl 255 Kangaskhan High Jump Kick vs. Lvl 255 Chansey: 827-972 (46.5 - 54.6%) -- 63.1% chance to 2HKO
Lvl 255 Kangaskhan High Jump Kick vs. Lvl 255 Aerodactyl: 191-225 (20.9 - 24.7%) -- guaranteed 5HKO
Lvl 255 Kangaskhan High Jump Kick vs. Lvl 255 Kangaskhan: 338-398 (32.5 - 38.3%) -- 98.9% chance to 3HKO
Lvl 255 Kangaskhan High Jump Kick vs. Lvl 255 Tauros: 302-356 (34.1 - 40.2%) -- guaranteed 3HKO
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Electrode: 131-154 (16.2 - 19%) -- possible 6HKO
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Chansey: 293-345 (16.4 - 19.4%) -- possible 6HKO
Lvl 255 Kangaskhan Quick Attack vs. Lvl 255 Mewtwo: 112-132 (10.7 - 12.6%) -- possible 8HKO

Dodrio
Level: 255
- Spore
- Agility
- Quick Attack
- Seismic Toss / Hi Jump Kick
Notice any similarities between Kangaskhan and Dodrio? The truth is that both Pokemon have a very similar niche, and a lot of what was previously said in regards to Kangaskhan applies to Dodrio too. Dodrio is a Quick Attacker that trades some HP (turning Seismic Toss into a 4HKO) and in return gets slightly more attack, slightly more speed, and the Flying type, which gives an immunity to Fissure and neutrality to Hi Jump Kick. Dodrio still faces many of the same problems though - it really struggles against teams with either Aerodactyl or Gengar and prefers to see teams consisting of just Chansey and Electrode. Dodrio's lower HP also hurts it ability to do damage - it has roughly a 50/50 chance of waking up in time to deal a second QA against Seismic Toss Electrode, though it does get some consolation in its better attack stat and higher crit rate. Dodrio's objective is to either force the opponent to bring out Chansey so that Dodrio can reverse sweep, or by dealing enough damage to Electrode so that the user's Mewtwo/Aerodactyl can finish Electrode off before reverse sweeping. Dodrio has options for its fourth move - since QA has a high 48 PP, Dodrio can use either Seismic Toss to help beat Aerodactyl and Gengar when at +2 speed and HJK helps Dodrio clear Chanseys faster.
Crit Rate: 19.53%
Lvl 255 Seismic Toss vs. Lvl 255 Dodrio: 255-255 (31.5 - 31.5%) -- guaranteed 4HKO
Lvl 255 Dodrio High Jump Kick vs. Lvl 255 Chansey: 913-1074 (51.3 - 60.4%) -- guaranteed 2HKO
Lvl 255 Dodrio High Jump Kick vs. Lvl 255 Aerodactyl: 211-249 (23.1 - 27.3%) -- 67.4% chance to 4HKO
Lvl 255 Dodrio High Jump Kick vs. Lvl 255 Kangaskhan: 374-440 (36 - 42.4%) -- guaranteed 3HKO
Lvl 255 Dodrio High Jump Kick vs. Lvl 255 Tauros: 335-394 (37.8 - 44.5%) -- guaranteed 3HKO
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Electrode: 143-169 (17.6 - 20.9%) -- possible 5HKO
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Chansey: 324-381 (18.2 - 21.4%) -- possible 5HKO
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Mewtwo: 123-145 (11.8 - 13.9%) -- possible 8HKO
Lvl 255 Seismic Toss vs. Lvl 255 Dodrio: 255-255 (31.5 - 31.5%) -- guaranteed 4HKO
Lvl 255 Dodrio High Jump Kick vs. Lvl 255 Chansey: 913-1074 (51.3 - 60.4%) -- guaranteed 2HKO
Lvl 255 Dodrio High Jump Kick vs. Lvl 255 Aerodactyl: 211-249 (23.1 - 27.3%) -- 67.4% chance to 4HKO
Lvl 255 Dodrio High Jump Kick vs. Lvl 255 Kangaskhan: 374-440 (36 - 42.4%) -- guaranteed 3HKO
Lvl 255 Dodrio High Jump Kick vs. Lvl 255 Tauros: 335-394 (37.8 - 44.5%) -- guaranteed 3HKO
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Electrode: 143-169 (17.6 - 20.9%) -- possible 5HKO
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Chansey: 324-381 (18.2 - 21.4%) -- possible 5HKO
Lvl 255 Dodrio Quick Attack vs. Lvl 255 Mewtwo: 123-145 (11.8 - 13.9%) -- possible 8HKO

Tauros
Level: 255
- Spore
- Agility / Seismic Toss
- Quick Attack
- Seismic Toss
Tauros is in a weird middle ground in terms of Quick Attackers. While it's not as fast as Mewtwo or Aerodactyl, not as strong as Dodrio, and doesn't have as high an HP stat as Kangaskhan, Tauros is a strong Quick Attacker with the extremely notable advantage of speedtying with Gengar. Like the pure Quick Attackers above it, Tauros's goal is to chip away at Electrode before it can get Spored, with the eventual goal of reverse sweeping after Electrode is knocked out. By getting a speedtie against Gengar, Tauros notably is only directly countered by Aerodactyl, allowing Tauros to potentially sweep a team consisting of Electrode + Gengar + 4 Chanseys. Despite this, Tauros's QAs are weaker than Dodrio and Tauros is less likely to get additional hits off than Kangaskhan, while not improving on the Aerodactyl matchup. Seismic Toss is a requirement for Tauros to defeat Gengar if it wins the speedtie, with the additional option of either running Agility to reach 999 speed or an additional Seismic Toss to help Tauros break through Chanseys more easily.
Crit Rate: 21.48%
Lvl 255 Seismic Toss vs. Lvl 255 Tauros: 255-255 (28.8 - 28.8%) -- guaranteed 4HKO
Lvl 255 Tauros Quick Attack vs. Lvl 255 Electrode: 135-159 (16.7 - 19.6%) -- guaranteed 6HKO
Lvl 255 Tauros Quick Attack vs. Lvl 255 Chansey: 303-357 (17 - 20%) -- possible 5HKO
Lvl 255 Tauros Quick Attack vs. Lvl 255 Mewtwo: 115-136 (11 - 13%) -- possible 8HKO
Lvl 255 Seismic Toss vs. Lvl 255 Tauros: 255-255 (28.8 - 28.8%) -- guaranteed 4HKO
Lvl 255 Tauros Quick Attack vs. Lvl 255 Electrode: 135-159 (16.7 - 19.6%) -- guaranteed 6HKO
Lvl 255 Tauros Quick Attack vs. Lvl 255 Chansey: 303-357 (17 - 20%) -- possible 5HKO
Lvl 255 Tauros Quick Attack vs. Lvl 255 Mewtwo: 115-136 (11 - 13%) -- possible 8HKO
Do Not Use
Persian: If there was a D tier in this VR, Persian would be in it. While it does outspeed Gengar, it is significantly weaker than its Normal-type QA counterparts, to the point where there's little reason to run it over QA Aerodactyl or Mewtwo, both of which speedtie with Aero while Persian does not.
Snorlax and MissingNo.: While Snorlax has the HP stat to live 6 Seismic Tosses and MissingNo. has the strongest Quick Attack in the meta, both are too slow to outspeed whatever Pokemon the opponent will send out after Electrode faints.
Dragonite - Dragonite may have the highest attack stat in the meta and an immunity to Fissure, but it doesn't outspeed anything in the meta besides Chansey and just is too outclassed by Aerodactyl to be used
Rhydon: Rhydon's Earthquake is powerful enough to OHKO Electrode. Too bad Rhydon can't outspeed anything.
Everything Else: Every other Pokemon in RBY is either too slow to be effective or directly outclassed by another Pokemon. If you can think of a Pokemon with a niche that I've neglected to think of, please reply and let me know!
RBY Pure Hackmons (No Pre-Status)
Sample Teams:
I'd like to close this long analysis out by suggesting two new sample teams, ideally replacing the 2 Gengar + 2 Aerodactyl sample and the 2 Gengar + 3 Aerodactyl sample. The Electrode + 5 Chansey sample still holds up, though it does need to be updated so that the Pokemon are at level 255.

This sample team is very similar to the Electrode + 5 Chansey sample but replaces one of the Chanseys with Aerodactyl, which greatly greatly improves upon the matchup against Quick Attackers.

This sample team aims to use Kangaskhan to whittle down the opposing Electrode before KOing it and reverse sweeping with QA Mewtwo.
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